<%--
  Created by IntelliJ IDEA.
  User: oldliu
  Date: 2023-06-07
  Time: 15:36
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>

  <%
      pageContext.setAttribute("msg","data in page");
      request.setAttribute("msg","data in request");
      session.setAttribute("msg","data in session");
      application.setAttribute("msg","data in application");
      request.getRequestDispatcher("b.jsp").forward(request,response);
  %>
</body>
</html>
